The update to the award winning syncroFLOAT, the women's specific syncroFLOAT 2 is designed for the efficient runner looking for a fast, neutral, cushioning shoe with a minimal degree of pronation control. The seamless race slipper upper is mated to a 360 degree Stability Lacing System ensuring out of the box comfort. New full blown rubber heel crash pad works in conjunction with our tuned SyncroFrame for a ride like no other.